Cotton-gin.



W. T. DODD.

COTTON GIN.

APPLICATION FILED DEC. 2. 1912. RENEWED OCT. 20, 1916.

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COTTON GIN.

APPLICATION FILED DEC. 2. 1912- RENEWED OCT. 20, I916- LQQGfi PatentedMa '15,1917.

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WITNESSES Ill/VE/VTOR W William T Dodol, 2 3. khw fi BY W ATTORNEYS W.T. DODD.

COTTON GIN.

APPLICATION FILED DEC. 2, i912- RENEWED OCT-. 20, I9l6.

Patented May 15, 1917.

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W. T. DODD.

COTTON em.

Patented May 15, 1917.

APPLICATlON FILED DEC! 2, I912. RENEWED OCT. 20- T916.

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WILLIAM T. DODD, OF BROOKLYN, NEW YORK, ASSIGNOB TO NATIONAL ROLLER GINCOMPANY, OF'PI-IOENIX, ARIZONA, A CORPORATION OF ARIZONA.

COTTON-GIN.

Patented May 115, 1917.

Application filed December 2, 1912, Serial No. 734,509. Renewed October20, 1916. Serial No. 126,799.

To all whom 2'25 may concern:

Be it known that I, WVILLIAM T. Donn, a citizen of the United States,and a resident of the city of New York, borough of Brooklyn, in thecounty of Kings and State of New York, have invented a new and ImprovedCotton-Gin, of which the folhiwing is a full, clear, and exactdescription.

My invention has for its object to provide a cotton gin, with novelparts disposed to obtain a more thorough cleaning of the cot ton than ispossible'with cotton gins now in use, and to treat and straighten thecotton fibers. Other objects of the invention are to construct theginning rolls of fiber board disks clamped to shafts and provided withspiral grooves, to construct the knocker rolls each of one piece ofmetal with projecting teeth, to provide new means for adjusting thedoctor blades relatively to the ginning rolls, to provide air blast fansfor directing the cotton against beater rolls, and to provide a passagewith transverse panels with upwardly extending teeth over which thecotton is carried for opening and straightening out the cotton fibers.

Additional objects of my invention will appear in the following completespecification, in which the present form of the invention is disclosed.

In the drawings, similar characters of reference indicate correspondingparts in all the views, in which Figure 1 is a sectional elevation of.my cotton gin;

Fig. 2 is a side elevation of a cotton gin showing the drivingmechanism;

Fig. 3 is a view of partial section, showing one of the ginning rolls;

Fig. 1 is a plan view of one of the doctor blades, showing the means bywhich it is adjusted relative to the ginning roll;

Fig. 5 is an enlarged transverse sectional. view, showing one of theginning rolls and a doctor blade in position relative thereto;

Fig. 6 is an enlarged View showing the means for opening andstraightening out the cotton fibers;

Fig. 7 is a. transverse sectional View of Fig. 6;

Fig. 8 is a fragmentary view, showing in perspective one of the panelswith its teeth opening and straightening the cotton fibers; and i Fig. 9is a transverse sectional. view of one of the machine rolls.

By referring to the drawings, it will. be seen that the casing 5 hasdirt pockets (3, and that the pockets 6 are disposed opposite eachother. Disposed in the frame 5 and journaled in the bearings 9 there aretwo feed rollers 7, with outwardly disposed teeth 8. These feed rollersrotate outwardly and downwardly, as shown by the arrows in Fig. 1 of thedrawings, the teeth 8 of the feed rollers 7 passing .down adjacent thegauze 10. at the inner sides of the dirt pockets (3. .t will thereforebe seen that with the rotation of the feed rollers 7 the cotton will bemoved down and against the gauze members 10, so that dirt, leaves, etc.,may pass through the gauze members into the dirt pockets 6. Above thefeed rollers 7 there are feed rollers 11, 12, 13 and 14, these feedrollers 11, 12, 13 and 14 being journaled in the frame, as shown inFigs. 1 and 2 of the drawings, for rotating as shown by the arrows inFig. 1 of the drawings. Disposed in the frame below the feed rollers 7there is a wedge-shaped member 1.5 for directing the cotton in thedirection of the doctor blades 16. This wedge-shaped member 15 alsocovers the air conduit 17, which is provided for carrying air to thepassage 18 between and under the ginning rolls 19. The wedge-shapedmember 15 has curved bottom members 20 which conform with and aredisposed parallel with the peripheries of the ginning rolls 19, so thatthe ginning rolls 19 may rotate outwardly and downwardly close to thesaid bottom members 20 and prevent the passage of cotton between theginning rolls and the said bottom members.

As shown in Fig. 3 of the drawings, these ginning rolls 19 areconstructed with shafts 21 and 21, on which are mounted a pluralit offiber board disks 22, there being mounted on the shafts 21 and 21washers 23 which engage the said fiber board disks 22, the washers 23being held in position against the end fiber board disk 22 by thenuts 2%which mesh with threads on the shafts 21 and 21. These ginning rolls areconstructed in this manner of fiber board disks at very little expense.These fiber board disks are keyed to and are rigidly mounted on theshaft 21 in the manner described, which permits of the displacement ofthe fiber board disks without any trouble if for any reason it bedesired to renew them.

The ginning rolls 19 have spiral grooves 25, so that the cotton will beengaged by the ginning rolls at these spiral grooves, and will becarried past the doctor blades 16 and knocker rolls 26. These knockerrolls 26 are mounted on the shafts 27, which are journaled in the frame5, as shown in Figs. 1 and 2 of the drawings. These knocker rolls areeach constructed in one piece with n'ojecting teeth. The knocker rolls2(3 rotate inwardly and (lownwardly, while the ginning rolls rotateoutwardly and down wardly. Disposed between these knoeker rolls 26 andthe ginning rolls 19 are the doctor blades 16, these doctor blades 16having slots 28 in which are disposed the posts 29 which engage themembers 30 and hold them in position against the doctor blades, thebolts 29 meshing in threaded orifices in the frame 5. The doctor blades16 and the members 30 are disposed in the guide-ways 31, and between therear ends 32 of the doctor blades and the shoulder 33 of the guide-way31, there are disposed two wedge members 34 which taper in oppositedirections as shown in Fig. 4 of the drawings. Meshing in threadedorifices in the frame 5, there are screws 35, one at each side, thescrews being disposed for engaging the butts 36 of the wedge members 34for moving them relatively to each other and to the frame 5 foradjusting the position of the doctor blades 16. It should be noted thatthe doctor blades 16 are inclined upwardly and inwardly, and engage theupper portions of the ginning rolls 19, the ginning rolls rotating inthe direction of the doctor blades. The knocker rolls 26 are disposed inrecesses 37 of the frame. In the bottoms of these recesses, there areslots 38 which permit foreign matters to be carried therethrough by theknocker rolls 26. Below the ginning rolls 19 there are disposed airblast fans 39, having paddles 40 which engage the air which entersthrough the conduit 17 and through the space 18 between the ginningrolls, these air blast fans carrying the air under the ginning rolls andin the direction opposite to that in which the ginning rolls travel. Theair propelled by the fans 39 engages the cotton which is broughtdownward and inward by the ginning rolls 19, and forces this air outwardand downward against the idler beater rolls 41 which are journaled inthe frame 5. These idler beater rolls 41 are provided with teeth 42, asshown in the drawings.

As it will be seen by referring to Fig. 1 of the drawings, while the airblast fans 39 are rotated outward and downward by the movement of theirshafts 43, the idler beat-er rolls 41 rotate inward and downward.

Disposed between the air blast fans 39 there are conduit members 44which, with the ginning rolls 19, form passages 45 for the air from theconduit 17. As the cotton is moved downward from the air blast fans 39it travels in the conduits 46 to the means shown in Figs. 6, 7 and 8 foropening and straightening out the cotton fibers. This means consists ofa conduit 47 having transversely disposed pane1s-48 extending upwardfrom the bottom 49 of the conduit and spaced from the top 50. Secured toand extending rearwardly from these panels 48 there are teeth 51. Whenthe cotton is forced through this conduit in the direction of the arrowshown in Fig. 7 of the drawings, the teeth 51 will serve to open andstraighten the cotton fibers. It will also be understood that there willbe very little movement of air in the spaces 52 of the rear of thepanels 48, and that, consequently, dirt may collect in these spaces 52which may be removed from time to time.

As shown in Fig. 2, the bearings 9 are disposed in guideways (30 in theframe 5, the bearings 9 being held in adjusted position by the screws(31. The feed wheels 7 are mounted on the shafts (32 journaled in thebearings 9, and on these shafts 62 are mounted the gear wheels 63 whichmesh with each other. On one of the shafts 62 is mounted a gear wheel 64with which .meshes the gear wheel (35 on the shaft 66. Mounted on a cam(37 secured to the shaft 66 there is a link (38 which has a tooth 69engaging the ratchet wheel 7 O mounted on the shaft 12 on which the feedroller 12 is mounted. This shaft 12 is connected with the shaft 13 bythe gear wheel 71. A pulley 72 is mounted on the shaft 66, and thispulley 72 is connected with the pulley 73 by the belt 74. The pulley 73is mounted on the shaft 21 which is journaled in a bearing member 75disposed in a guideway 76 in the frame. The bearing member 7 5 is heldin place by the screws 7 7 mounted on -this shaft 21. There is also afriction wheel '78 which drives a friction wheel 79 secured to the shaft27, there being also a friction wheel 80 which is secured to this shaft27 and which drives the friction wheel 81 secured to the shaft 43 towhich the beater roll 41 is also secured. The friction wheel 78 alsodrives the friction wheel 83 secured to the shaft 21, the friction wheel83 driving the friction wheel 84 secured to the other shaft 27, and thefriction wheel 85 secured to the shaft, said other shaft 27 driving thefriction wheel 86 secured to the other shaft 43.

Having thus described my invention, 1 claim as new and desire to secureby Letters Patent:

1. In a cotton gin, two ginning rolls spaced apart, dividing membersforming a conduit leading to the space between the ginning rolls,conduit members spacedfrom the dividing members and cooperating with theginning rolls to direct air from between the inning rolls under theginning rolls, fans disposed adjacent the conduit members and disposedunder the ginning rolls, and beater rolls at 'the outer sides of thefans.

9-. In a cotton gin, two ginning rolls spaced apart, dividing membersforming a conduit loading to the space between the ginning rolls,conduit members spaced from the dividing members and cooperating withthe ginning rolls to direct air from between the ginning rolls under theginning rolls.

3. In a cotton gin, a casing having a side with a projection in whichthere is a recess, there being an opening at the bottom of the recess, alznoclier roll rotatably mounted at the recess, a doctor bladeprojecting obliquely from without the casing to a position at the innerside of the casing adjacent the knocker roll, means below the projectionat the outer side of the casing for adjusting the position of the doctorblade, and a ginning roll disposed at the inner side of the doctor bladeand the knocker roll.

4:. In a cotton gin, a ginning roll, a knocker roll disposed adjacent tothe gin ning roll, a doctor blade disposed for 00- operating with theginning and the knocker rolls, a beater roll disposed below the doc-Gopiea of this patent may be obtained for five cents each, by addressingthe Commissioner Washington, D. G.

tor blade, and a fan for directing an air blast at the side of thebeater roll.

5. In a cotton gin, a ginning roll, a knocker roll having its axis atone side of the vertical plane of the axis of the ginning roll, a doctorblade for cooperating with the ginning and knocker rolls, a beater rolldisposed below the horizontal plane of the axis of the ginning roll, anda fan for directing air from the other side of the vertical plane of theaxis of the ginning roll down at the side of the beater roll.

6. In a I cotton gin, a frame having dividing members therein forming aconduit, ginning rolls spaced apart with exposed surfaces at the outersides of the dividing members, means for cooperating with the ginningrolls for treating the cotton passing through the cotton gin, beaterrolls disposed below the horizontal planes of the ginning rolls, andfans for directing air down at the sides of the beater rolls.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

WILLIAM T. DODD. Witnesses:

EVERARD B. MARSHALL, PHILIP D. RoLnHAUs.

of Patents,

